A comparative study of cosmological models in alternative theory of gravity with LVDP & BVDP
Sign Up to like & getrecommendations! Published in 2017 at "Astrophysics and Space Science"
DOI: 10.1007/s10509-017-3117-9
Abstract: In this communication we have presented a comparative study of Friedmann-Lemaître-Robertson-Walker (FLRW) cosmological models in alternative theory of gravity with linearly varying deceleration parameter (LVDP) and bilinearly varying deceleration parameter (BVDP) as suggested by Mishra… read more here.
Keywords: law; cosmological models; models alternative; alternative theory ... See more keywords
FLRW cosmological models with quark and strange quark matters in f(R,T)$f(R,T)$ gravity
Sign Up to like & getrecommendations! Published in 2018 at "Astrophysics and Space Science"
DOI: 10.1007/s10509-018-3335-9
Abstract: In this paper, we have studied the magnetized quark matter (QM) and strange quark matter (SQM) distributions in the presence of f(R,T)$f(R,T)$ gravity in the background of Friedmann-Lemaître-Robertson-Walker (FLRW) metric. To get exact solutions of… read more here.
Keywords: strange quark; cosmological models; sqm distributions; quark ... See more keywords
Cosmological models with EoS parameters in f(T) theory of gravity
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DOI: 10.1007/s12648-020-01691-w
Abstract: We have presented cosmological models with equation of state (EoS) parameters in $$f(T)$$ f ( T ) theory of gravity, which is an extension of the teleparallel theory of gravity, where T is the torsion… read more here.
Keywords: models eos; cosmological models; eos parameters; theory gravity ... See more keywords
Tilted cosmological models in f(T) theory of gravity
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DOI: 10.1007/s12648-020-01830-3
Abstract: We have presented tilted cosmological models in f ( T ) theory of gravity. f ( T ) theory is an extension of teleparellel theory of gravity, where T is the torsion scalar. We solve… read more here.
Keywords: tilted cosmological; cosmological models; gravity; models theory ... See more keywords
Cosmological models with variable anisotropic parameter in f(R, T) gravity
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DOI: 10.1007/s12648-020-01877-2
Abstract: In this article, we present and analyze cosmological models with an anisotropic variable parameter. We have set up the field equations with the space time in the form of Bianchi I metric with an f… read more here.
Keywords: models variable; cosmological models; anisotropic parameter; variable anisotropic ... See more keywords
Holographic Dark Energy Cosmological Models in f(G) Theory
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DOI: 10.1016/j.newast.2020.101420
Abstract: Abstract In this paper, Locally Rotationally Symmetric (LRS) Bianchi type-I models with holographic dark energy within the framework of f(G) theory of gravitation are thought about. So as to get determinate solutions, volumetric exponential expansion,… read more here.
Keywords: cosmological models; dark energy; energy cosmological; holographic dark ... See more keywords
Quasilocal horizons in inhomogeneous cosmological models
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DOI: 10.1088/1361-6382/aaf77e
Abstract: We investigate quasilocal horizons in inhomogeneous cosmological models, specifically concentrating on the notion of a trapping horizon defined by Hayward as a hypersurface foliated by marginally trapped surfaces. We calculate and analyse these quasilocally defined… read more here.
Keywords: cosmological models; quasilocal horizons; horizons inhomogeneous; inhomogeneous cosmological ... See more keywords
Cosmological reconstruction and Om diagnostic analysis of Einstein-Aether theory
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2017/04/015
Abstract: In this paper, we will analyse the cosmological models in Einstein-aether gravity, which is a modified theory of gravity in which a time-like vector field breaks the Lorentz symmetry. We will use this formalism to… read more here.
Keywords: reconstruction diagnostic; einstein aether; cosmological models; analysis ... See more keywords
Constraining the anisotropy of the Universe with the Pantheon supernovae sample
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DOI: 10.1088/1674-1137/43/12/125102
Abstract: We test the possible dipole anisotropy of the Finslerian cosmological model and the other three dipole-modulated cosmological models, i.e. the dipole-modulated ΛCDM, wCDM and Chevallier–Polarski–Linder (CPL) models, by using the recently released Pantheon sample of… read more here.
Keywords: sample; cosmological models; constraining anisotropy; dipole anisotropy ... See more keywords
Horizon thermodynamics in holographic cosmological models with a power-law term
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DOI: 10.1103/physrevd.100.123545
Abstract: Thermodynamics on the horizon of a flat universe at late times is studied in holographic cosmological models that assume an associated entropy on the horizon. In such models, a $\mathrm{\ensuremath{\Lambda}}(t)$ model similar to a time-varying… read more here.
Keywords: law; cosmological models; ensuremath; horizon ... See more keywords
Thermodynamics of scale factor dual universes
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DOI: 10.1103/physrevd.95.044033
Abstract: The thermodynamical aspects of the conformal time scale factor duality (CSFD) of cosmological models within Einstein gravity are investigated. We derive the CSFD transformations of the thermodynamical quantities describing the thermal evolution of the matter… read more here.
Keywords: thermodynamics; cosmological models; scale factor; thermodynamics scale ... See more keywords